timer_getoverrun - Get overrun count for a specified timer
int timer_getoverrun (
timer_t timerid );
The timer_getoverrun function returns the overrun count for a specified timer. The count contains the number of extra timer expirations that occurred between the time the signal was queued and when it was delivered, up to but not including the implementation-defined maximum DELAYTIMER_MAX.
Upon successful completion, the timer_getoverrun function returns the overrun count for the timer specified. If the timer overrun count is equal to or greater than DELAYTIMER_MAX, the overrun count is set to DELAYTIMER_MAX. If the function fails, it returns -1 and sets errno to indicate the type of error that occurred.
The timer_getoverrun function fails under the following condition:
Functions: clock_getres(3), clock_gettime(3), clock_settime(3), timer_delete(3), timer_gettime(3), timer_settime(3) delim off